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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <string>
// template<class charT, class traits>
// constexpr bool operator<=(basic_string_view<charT,traits> lhs,
// basic_string_view<charT,traits> rhs);
#include <experimental/string_view>
#include <cassert>
#include "constexpr_char_traits.hpp"
template <class S>
void
test(const S& lhs, const S& rhs, bool x, bool y)
{
assert((lhs <= rhs) == x);
assert((rhs <= lhs) == y);
}
int main()
{
{
typedef std::experimental::string_view S;
test(S(""), S(""), true, true);
test(S(""), S("abcde"), true, false);
test(S(""), S("abcdefghij"), true, false);
test(S(""), S("abcdefghijklmnopqrst"), true, false);
test(S("abcde"), S(""), false, true);
test(S("abcde"), S("abcde"), true, true);
test(S("abcde"), S("abcdefghij"), true, false);
test(S("abcde"), S("abcdefghijklmnopqrst"), true, false);
test(S("abcdefghij"), S(""), false, true);
test(S("abcdefghij"), S("abcde"), false, true);
test(S("abcdefghij"), S("abcdefghij"), true, true);
test(S("abcdefghij"), S("abcdefghijklmnopqrst"), true, false);
test(S("abcdefghijklmnopqrst"), S(""), false, true);
test(S("abcdefghijklmnopqrst"), S("abcde"), false, true);
test(S("abcdefghijklmnopqrst"), S("abcdefghij"), false, true);
test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), true, true);
}
#if _LIBCPP_STD_VER > 11
{
typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
constexpr SV sv1;
constexpr SV sv2 { "abcde", 5 };
static_assert ( sv1 <= sv1, "" );
static_assert ( sv2 <= sv2, "" );
static_assert ( sv1 <= sv2, "" );
static_assert (!(sv2 <= sv1), "" );
}
#endif
}
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